Reverse lock slider for separable fasteners



a 1941- L. H. MORIN REVERSE LOCK SLIDER FOR SEPARABLE FASTENERS I Filed Jan. 25, 1939 A 00m A. Maw/X BY 26.

ATTO R N E Patented Jan. 7,1941 I a UNITED STATES PAT-ENTOFFICE REVERSE LOCK SLIDER FOR SEPARABLE FASTENERS Louis H. Morin, Bronx, N. Y., assignor to Whitehall Patents Corporation, Bronx, N. Y., a corporation oi New York Application January 25, 1939, Serial No. 252,736

7 Claims. (Cl. 24-2055) This invention relates to separable fasteners lar position in the operation of moving the slider employing stringers, and particularly to a relongitudinally of the stringers. The end-of the versible lock slider for fasteners of this kind for pull carrying the pivot pin 15 is rounded as seen retaining the slider against movement on theat I6 so as to permit free swinging movement of stringers with the pull arranged in either of two the pull as will be apparent, and the pin is mov- 5 positions resting upon one wall of the slider. able from one end portion of the aperture I! as More particularly the invention relates to a reseen in Fig. 2 to the other end portion thereof versible lock slider of this type wherein the finger as is indicated by the dot and dash lines in Fig, 3. piece or pull of the slider has a sliding pivotal At I1 is shown a lock pin or element which is 1b connection upon one wall of the slider within pivotally supported as at It upon one side edge 10 certain limits, and further wherein a lock pin or of the pull outwardly of the pivot pin Hi. The element is pivotally supported in connection with lock element I1 is supported snugly for free movethe pull outwardly of the pivotal end thereof to ment in an aperture I9 formed in the top wall 8 provide a more positive locking engagement of of the slider, so that when the pull is in the the slider, especially in what is regarded as the normal or resting position upon the upper surface 15,

reverse position of the pull on the slider. The of the top wall 8 of the slider in either the full novel features of the invention will be best underor dotted line positions thereof shown in Figs. 2 stood from the following description when taken and 3, the element I! will extend into the channel together with the accompanying drawing, in of the slider to engage at least one of the links 0 which certain embodiments of the invention are of one of the stringers; for example, the links Ga disclosed, and in which the separate parts are n of the stringer So, as is clearly illustrated in Figs.- designated by suitable reference characters in 1 and 2 of the, drawing. It w a O app ar t each of the views, and in which: in the operation of grasping the pull l3 to operate Fig. '1 is a plan view of a part of two stringers the slider in either direction on the stringers, the showing one of my improved lock sliders thereon upward or raising movement of the pull will with- 25 r with part of the construction broken away and draw the element 11 from, the channel of the in section. slider permitting free movement of the slider on Fig. 2 is a section substantially on the line 2-4 the stringers. of Fig. 1. It will appear from a consideration of Fig. 3 of Fig. 3 is a view similar to Fig. 2 with parts in the drawing that in the extreme upward or outso a difierent position, and ward movement of the pull, the element ll will Fig. 4 is a section on the line ll of Fig. i. still be retained within the aperture iii. In other In Fig. 1 of the drawing 5, 5a represents porwords, the ,element ll never becomes displaced tions of two stringer tapes having coupling links from this aperture, regardless of the position of or scoops it, 60 attached to the beaded edges the pull. It will appear, however, that in the thereof and adapted to be coupled and uncoupled automatic or manual movement of the pull: from by a slider l. The slider '6 comprises the more '2. raised to the normal resting position will cause or less conventional channeled. body having top the element ill to he moved into the channel to and bottom walls 8 and E2 joined by a connecting engage one of the stringers. 40 web it centrally oi the wide end of the slider. It will appear from a consideration of Figs. 2 40 The top wall 8 in the construction shown is and 3 of the drawing that when the pull is in its provided with an elongated central lug it having normal or locked, position, the pivot id of the an elongated aperture l2 therein which opens lock element ll is disposed in alinement with the through opposite sides of the lug and forms what pivot l5 oi. the pull. It will thus be seen that any might be termed a channel. At it I have shown stress or strain of the links upon the lock element 45 a finger piece or pull having a forked end it for ll when in operative position, will in no way the reception of the lug M. The inner end of the tre."ee movement to the pull tending to move pull has a transverse pivot pin 15 fixedly coupled the into an open position. While some movetherewith and transversing the aperture or chanmerit may be attributed to the element ll due nel l2 so that the pull may be arranged to lie to the natural clearances which are allowed in 50 flatly upon the wide end portion of; the slider as the aperture 19, this movement will onlyamount seen in full lines in Figs. 1 and 2, or upon the to a swinging movement of the element on its narrow end portion of the slider as indicated in pivot l8. dot and dash lines in Fig. 3. The pull may also In lock sliders of conventional types, it has be raised to a perpendicular or any desired angubeen the common practice to employ lock pins 55 lock is provided, and one which is especially adapted for use on separable fasteners of the reverse locking type; that is to say, where such devices are applied to leggings and similar garments or articles, when the normal tendency of the pull is to hang downwardly in the direction of the wide end of the slider in the manner illustrated in Figs. 1 and 2 of the drawing. In other uses of fasteners, the normal downward hanging of the pull is similar to that illustrated in dot and dash lines in Fig. 3 of the drawing.

It will of course be apparent to those skilled in the art that my invention is not restricted to any particular arrangement of the lock element upon the pull, nor to the particular contour of the pull herein disclosed.

' in the lug ll, so that the pivotpinli of the pull is free to move in opposite end portions of the channel l2 when the pull is swunginto the two positions indicated in full lines in Figfl-and dotted lines in Fig. 3.

My invention is applicable to sliders and fastener stringers of the metallic as well as of the plastic types, or combinations of metallic or plastic elements may be employed. That is to say, where plastic materials are used in the construction of the slider proper and pull, the pivot pins,

and if desired, the lock element, may be composed of metallic material to provide the required strength and rigidity. However, in some types of fasteners where the stringers are not subjected to excessive stress or strain, all plastic or thermoplastic materials may be employed.

It will appear from a consideration of Figs. 2

' and 3 of the drawing that the lock element or pin I1 is always maintained in a position at right angles to the plane of the tape or the outer wall of the slider, or may be said to be perpendicular thereto, regardless of the position of the finger piece or. pull l3. In other words, this lock element or pin has a definite inward and outward movement and is not capable of swinging movement on the slider, and thus forms a key element fitting between adjacent links of a stringer to positively lock the slider in position and to be unaffected by any stress or strain tending to move the slider longitudinally of the stringers.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A look slider for separable fasteners of the class described comprising a channeled body, a

lug on one wall of said body, said lug having an the channel of said body, a pull, said pull having aforked end portion, a coupling pin mounted .closely adjacent the extremityof the forked end portion of the pull to extend through and operate lock element mounted in the aperture of said wall a channel arranged therebetween, a pull having of the slider, said element being pivotally supported upon the pull adjacent but inwardly of said pin with respect to the extremity of the pull whereby in raising the pull with respect to said wall of the slider, the lock element is withdrawn 4! fromthe channel of said slider.

2. A lock slider for separable fastener stringers of the character described, said slider comprising a channeled body having spaced side walls with a channel arranged therebetween, a pull having 10 pivot means at one mounting end thereof, elongated bearing forming means on one wall of said slider cooperating with the mounting end of said pull and providing pivotal and limited sliding movement of said pull, said wall of the slider ad- 15 jacent and intermediate the ends of said bearing forming means having an aperture opening into the channel thereof, a lock element pivotally coupled" with said pull at a point slightly spaced from the means on the mounting end thereof, 20 and said lock element being movably supported in said aperture and extending into the channel ofsaid slider in predetermined positions of said pull.

3. A look slider for separable fastener stringers 25 of the-character described, said slider comprising a channeled body having spaced side walls with a channel arranged therebetween, a pull having pivot means at one mounting end thereof, elongated bearing forming means on one wall of said 80 slider cooperating with the mounting end of said pull and providing pivotal and limited sliding movement of said pull, said wall of the slider adjacent and intermediate the ends of said bearing forming means having an aperture opening into the channel thereof, a lock element pivotally coupled with said pull at a point slightly spaced from the pivot means at the mounting end thereof, said lock element registering with said aperture and being slidably movable therein in the pivotal movement of said pull between two terminalpositions extending in opposite directions along said slider wall, and the length of said lock element being sufllcient to extend into the channel of said slider when the pull is in either of said terminal positions.

4. A look slider for separable fastener stringers of the character described, said slider comprising a channeled body having spaced side walls with the channel thereof, a lock element pivotally-coupied with said pull at a point slightly spaced from the pivot means at the mounting end thereof, said lock element registering with said aperture and being slidabiy movable therein in the pivotal movement of said pull between two terminal positions extending in opposite directions along said slider wall, the length ofa-Said lock element being sufllcient to extend into the channel of said slider when the pull is in either of said terminal pontions, and the spaced relation of the pivot of said lock element and the pivot forming end of said pull being sufll'cient to provide withdrawal of said lock element from the channel of said slider in the operation of raising said pull from the terminal position thereof;

5. A took slider for separalhe fastener stringers of die oilsracter described. said slider comprising a channeled body having spaced side walls with a channel arranged therebetween, a pull havingmovement of said pull, said Wall of the slider adjacent and intermediate the ends of said bearing forming means having an aperture opening into the channel thereof, a lock element pivotally coupled with said pull at a point slightly spaced from the pivot means at the mounting end therof, said lock element being movably supported in said aperture and extending into the channel of said slider in predetermined positions of said pull, and the engagement ofsaid lock element with said aperture being sufiiciently close to limitthe movement of the pivotal coupling of said pull and lock element to a plane perpendicular to the wall of the slider and in alinement with the aperture therein.

6. The combination with a channeled slider for separable fasteners of the class described having,

an aperture in one wall thereof opening perpendicularly into the channel of the slider, of a lock element fitting snugly in the aperture of the I slider wall to provide movement of said element only in a direction perpendicularly to the channel of the slider, means controlling movement of the lock element in the operation of the slider, said means comprising a member slidably pivoted to said slider wall, and means fixedly pivoting said member to said element.

7. In combination with a separable fastener slider having an aperture in one wall thereof opening perpendicularly into the channel of the slider, a pull pivoted at one end thereof to said wall of the slider adjacent said aperture, means movably supportingthe pivot end of said pull, a lock element fitting snugly in the aperture of the slider wall and fixedlypivoted to said pull adjacent the pivot end thereof, said pull having pivotal and limited sliding movement with respect to said means, and said lock element operating in the aperture of the slider wall only in a di rection perpendicular to the channel of the slider when moved into operative and inoperative position by said pull. 

